Impacts of Wind Stress Changes on the Global Heat Transport, Baroclinic Instability, and the Thermohaline Circulation
The wind stress is a measure of momentum transfer due to the relative motion between the atmosphere and the ocean. This study aims to investigate the anomalous pattern of atmospheric and oceanic circulations due to 50% increase in the wind stress over the equatorial region and the Southern Ocean. In...
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Online Access: | http://hdl.handle.net/11449/168332 https://doi.org/10.1155/2016/2089418 |
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ftunivespir:oai:repositorio.unesp.br:11449/168332 2023-07-02T03:30:40+02:00 Impacts of Wind Stress Changes on the Global Heat Transport, Baroclinic Instability, and the Thermohaline Circulation Machado, Jeferson Prietsch Justino, Flavio Pezzi, Luciano Ponzi Universidade Estadual Paulista (UNESP) 2016-01-01 http://hdl.handle.net/11449/168332 https://doi.org/10.1155/2016/2089418 eng eng Advances in Meteorology 0,480 http://dx.doi.org/10.1155/2016/2089418 Advances in Meteorology, v. 2016. 1687-9317 1687-9309 http://hdl.handle.net/11449/168332 doi:10.1155/2016/2089418 2-s2.0-84955569583 2-s2.0-84955569583.pdf openAccess info:eu-repo/semantics/article 2016 ftunivespir https://doi.org/10.1155/2016/2089418 2023-06-12T17:04:14Z The wind stress is a measure of momentum transfer due to the relative motion between the atmosphere and the ocean. This study aims to investigate the anomalous pattern of atmospheric and oceanic circulations due to 50% increase in the wind stress over the equatorial region and the Southern Ocean. In this paper we use a coupled climate model of intermediate complexity (SPEEDO). The results show that the intensification of equatorial wind stress causes a decrease in sea surface temperature in the tropical region due to increased upwelling and evaporative cooling. On the other hand, the intensification of wind stress over the Southern Ocean induces a regional increase in the air and sea surface temperatures which in turn leads to a reduction in Antarctic sea ice thickness. This occurs in association with changes in the global thermohaline circulation strengthening the rate of Antarctic Bottom Water formation and a weakening of the North Atlantic Deep Water. Moreover, changes in the Southern Hemisphere thermal gradient lead to modified atmospheric and oceanic heat transports reducing the storm tracks and baroclinic activity. Article in Journal/Newspaper Antarc* Antarctic North Atlantic Deep Water North Atlantic Sea ice Southern Ocean Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP Antarctic Southern Ocean Advances in Meteorology 2016 1 15 |
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Universidade Estadual Paulista São Paulo: Repositório Institucional UNESP |
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ftunivespir |
language |
English |
description |
The wind stress is a measure of momentum transfer due to the relative motion between the atmosphere and the ocean. This study aims to investigate the anomalous pattern of atmospheric and oceanic circulations due to 50% increase in the wind stress over the equatorial region and the Southern Ocean. In this paper we use a coupled climate model of intermediate complexity (SPEEDO). The results show that the intensification of equatorial wind stress causes a decrease in sea surface temperature in the tropical region due to increased upwelling and evaporative cooling. On the other hand, the intensification of wind stress over the Southern Ocean induces a regional increase in the air and sea surface temperatures which in turn leads to a reduction in Antarctic sea ice thickness. This occurs in association with changes in the global thermohaline circulation strengthening the rate of Antarctic Bottom Water formation and a weakening of the North Atlantic Deep Water. Moreover, changes in the Southern Hemisphere thermal gradient lead to modified atmospheric and oceanic heat transports reducing the storm tracks and baroclinic activity. |
author2 |
Universidade Estadual Paulista (UNESP) |
format |
Article in Journal/Newspaper |
author |
Machado, Jeferson Prietsch Justino, Flavio Pezzi, Luciano Ponzi |
spellingShingle |
Machado, Jeferson Prietsch Justino, Flavio Pezzi, Luciano Ponzi Impacts of Wind Stress Changes on the Global Heat Transport, Baroclinic Instability, and the Thermohaline Circulation |
author_facet |
Machado, Jeferson Prietsch Justino, Flavio Pezzi, Luciano Ponzi |
author_sort |
Machado, Jeferson Prietsch |
title |
Impacts of Wind Stress Changes on the Global Heat Transport, Baroclinic Instability, and the Thermohaline Circulation |
title_short |
Impacts of Wind Stress Changes on the Global Heat Transport, Baroclinic Instability, and the Thermohaline Circulation |
title_full |
Impacts of Wind Stress Changes on the Global Heat Transport, Baroclinic Instability, and the Thermohaline Circulation |
title_fullStr |
Impacts of Wind Stress Changes on the Global Heat Transport, Baroclinic Instability, and the Thermohaline Circulation |
title_full_unstemmed |
Impacts of Wind Stress Changes on the Global Heat Transport, Baroclinic Instability, and the Thermohaline Circulation |
title_sort |
impacts of wind stress changes on the global heat transport, baroclinic instability, and the thermohaline circulation |
publishDate |
2016 |
url |
http://hdl.handle.net/11449/168332 https://doi.org/10.1155/2016/2089418 |
geographic |
Antarctic Southern Ocean |
geographic_facet |
Antarctic Southern Ocean |
genre |
Antarc* Antarctic North Atlantic Deep Water North Atlantic Sea ice Southern Ocean |
genre_facet |
Antarc* Antarctic North Atlantic Deep Water North Atlantic Sea ice Southern Ocean |
op_relation |
Advances in Meteorology 0,480 http://dx.doi.org/10.1155/2016/2089418 Advances in Meteorology, v. 2016. 1687-9317 1687-9309 http://hdl.handle.net/11449/168332 doi:10.1155/2016/2089418 2-s2.0-84955569583 2-s2.0-84955569583.pdf |
op_rights |
openAccess |
op_doi |
https://doi.org/10.1155/2016/2089418 |
container_title |
Advances in Meteorology |
container_volume |
2016 |
container_start_page |
1 |
op_container_end_page |
15 |
_version_ |
1770274899491815424 |